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Radiative Majorana Neutrino Masses in a Parity Solution to the Strong CP Problem
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Radiative Majorana Neutrino Masses in a Parity Solution to the Strong CP Problem
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The strong CP problem can be solved in Parity symmetric theories with electroweak gauge group containing $SU(2)_L \times SU(2)_R$ broken by the minimal Higgs content. Neutrino masses may be explained by adding the same number of gauge singlet fermions as the number of generations. The neutrino masses vanish at tree-level and are only radiatively generated, leading to larger couplings of right-handed neutrinos to Standard Model particles than with the tree-level seesaw mechanism. We compute these radiative corrections and the mixing angles between left- and right-handed neutrinos. We discuss sensitivities to these right-handed neutrinos from a variety of future experiments that search for heavy neutral leptons with masses from tens of MeV to the multi-TeV scale.
Forward citations
Cited by 2 Pith papers
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Accidentally Stable Dark Matter in a Parity Solution to the Strong CP Problem
SU(2)_L×SU(2)_R bi-triplet fermions are accidentally stable dark matter in a parity solution to strong CP, with relic abundance forcing v_R ≲ 150 TeV.
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Lepton number violating signals of a parity symmetric model at $\mu$TRISTAN
In a parity-symmetric model with TeV-scale lepton number violation, a 10 TeV μ+μ+ collider can probe W' boson masses up to 16 TeV via on-shell and off-shell lepton number violating production.
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